It is the fate of every truth to be an object of ridicule when it is first acclaimed. It was once considered foolish to suppose that black men were really human beings and ought to be treated as such. Today it is considered as exaggeration to proclaim constant respect for every form of life as being the serious demand of a rational ethic. But the time is coming when people will be amazed that the human race existed so long before it recognized that thoughtless injury to life is incompatible with real ethics.
—Albert Schweitzer
refrain
A line or group of lines that is repeated throughout a poem, usually after every stanza.
rhyme royal
A type of poetry consisting of stanzas of seven lines in iambic pentameter with the rhyme scheme ababbcc. Rhyme royal was an innovation introduced by Geoffrey Chaucer.